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What is a reflex arc?

 

Option: 1

 The path that nerve impulses follow during a reflex action

 


Option: 2

 The time it takes for a reflex action to occur

 


Option: 3

The strength of a reflex action

 


Option: 4

The part of the brain that controls reflex actions

 


Answers (1)

best_answer

The path that nerve impulses take during a reflex action is known as the reflex arc. It has an effector, a motor neuron, a sensory neuron, an interneuron, and a sensory receptor. A signal is sent from the sensory receptor, which recognises the stimulus, to the sensory neuron, which then delivers the signal to the spinal cord. The motor neuron transmits the response from the interneuron, which processed the signal, to the effector (often a muscle or gland), triggering a reflexive reaction.

Option 1 is the correct answer. 

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Pankaj

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